Hi there, I have taken quite a lot of bass, tilapia and small catfish of around 2-5lbs here in South Africa. I have recieved an invitation from a buddy to take a couple of grass carp from his lake as there are too many. These fish are pretty big, around 40lbs+. How do I go about shooting these fish? How should I set up my bow fishing rig? Getting close to them is not a problem, one can easily sneak to within 10yards. I have a 60pound Browning compound with a basic AMS bowfishing rig. What I have improvised (as the correct large fish floats ect. aren't available here) is to loosen the end of the dacron line from the back of the retriever bottle and thread it out again in the front. To this I attached a "home made float" consisting of a empty plastic 2litre soda bottle. Will this suffice? How about shot placement and the retrieving of the float and fish? Any advice on this matter will be highly appreciated. Thanks!